---
title: Greenplum平台扩展框架(PXF)
---

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Greenplum平台扩展框架(PXF) 通过内置连接器提供跨异构数据源的并行、高吞吐量的数据访问和联合跨异构数据源的查询，该连接器将Greenplum数据库外部表定义映射到外部数据源。PXF源于Apache HAWQ项目。

-   [PXF介绍](intro_pxf.html)

    本主题介绍PXF概念和用法。

-   [PXF管理手册](about_pxf_dir.html)

    介绍了PXF的管理，包括安装，配置，初始化，升级和管理过程。

-   [使用PXF访问hadoop](access_hdfs.html)

    介绍了PXF Hadoop连接器，它们支持的数据类型以及可用于读取和写入HDFS的配置文件。

-   [使用PXF访问Azure，Google云端存储，Minio和S3对象存储](access_objstore.html)

    介绍了PXF对象存储连接器，它们支持的数据类型以及可用于从对象库读取数据和向对象库写入数据的配置文件。

-   [使用PXF访问SQL数据库（JDBC）](jdbc_pxf.html)

    介绍如何使用PXF JDBC连接器读取和写入外部SQL数据库，如Postgres或MySQL等。

-   [PXF故障排除](troubleshooting_pxf.html)

    介绍了PXF的服务和数据库级日志记录配置过程。它还标识了一些常见的PXF错误，并描述了如何解决PXF内存问题。

-   [PXF实用程序手册](ref/pxf-ref.html)

    介绍了工具命令的使用信息

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-   [Using the PXF Java SDK](sdk/dev_overview.html)

    The PXF SDK provides the Java classes and interfaces that you use to add support for external data stores and new data formats and data access APIs to Greenplum Database. This set of topics describe how to set up your PXF development environment, use the PXF API, and deploy your extension.
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